About.com (reference below) defines intensive margin as the degree (intensity) to which a resource is utilized or applied. For example, the effort put in by a worker or the number of hours the worker works. This is contrasted with Extensive Margin.
Atlas topic, subject, and course
About.com Economics, Intensive Margin, at http://economics.about.com/library/glossary/bldef-intensive-margin.htm, accessed 18 May 2016.
Page created by: Ian Clark, last modified 18 May 2016.